So there you have it. After you watch this, YouTube puts up some random video which may or may not have anything to do with anything. I'm trying to figure out how to turn that off.
(I tried another way of showing videos: I uploaded the video file directly to the blogging software. It was quicker than going through YouTube, but the quality was pretty dreadful. I guess I'll go through YouTube mostly. Sorry about the extraneous cruft.)